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 * Copyright (c) 2020, 2025, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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package com.oracle.svm.hosted.jdk;

import java.io.IOException;
import java.lang.module.ModuleReader;
import java.lang.module.ResolvedModule;
import java.util.Optional;

import org.graalvm.nativeimage.hosted.RuntimeResourceAccess;

import com.oracle.svm.core.feature.AutomaticallyRegisteredFeature;
import com.oracle.svm.core.feature.InternalFeature;
import com.oracle.svm.core.jdk.JNIRegistrationUtil;
import com.oracle.svm.core.traits.BuiltinTraits.BuildtimeAccessOnly;
import com.oracle.svm.core.traits.BuiltinTraits.NoLayeredCallbacks;
import com.oracle.svm.core.traits.SingletonLayeredInstallationKind.Independent;
import com.oracle.svm.core.traits.SingletonTraits;
import com.oracle.svm.core.util.VMError;
import com.oracle.svm.util.ReflectionUtil;

@SingletonTraits(access = BuildtimeAccessOnly.class, layeredCallbacks = NoLayeredCallbacks.class, layeredInstallationKind = Independent.class)
@AutomaticallyRegisteredFeature
class JDKRegistrations extends JNIRegistrationUtil implements InternalFeature {

    /**
     * Registrations of class re-initialization at run time. This is independent whether the JNI
     * platform is used or not.
     */
    @Override
    public void duringSetup(DuringSetupAccess a) {
        initializeAtRunTime(a, "java.io.RandomAccessFile", "java.lang.ProcessEnvironment", "java.io.File$TempDirectory", "java.nio.file.TempFileHelper", "java.lang.Terminator");
        initializeAtRunTime(a, "java.lang.ProcessImpl", "java.lang.ProcessHandleImpl", "java.lang.ProcessHandleImpl$Info", "java.io.FilePermission");

        /*
         * The class initializer queries and caches state (like "is a tty") - some state on JDK 17
         * and even more after JDK 17.
         */
        initializeAtRunTime(a, "java.io.Console");

        /*
         * Holds system and user library paths derived from the `java.library.path` and
         * `sun.boot.library.path` system properties.
         */
        initializeAtRunTime(a, "jdk.internal.loader.NativeLibraries$LibraryPaths");
        /*
         * Contains lots of state that is only available at run time: loads a native library, stores
         * a `Random` object and the temporary directory in a static final field.
         */
        initializeAtRunTime(a, "sun.nio.ch.UnixDomainSockets");
        initializeAtRunTime(a, "sun.nio.ch.UnixDomainSockets$UnnamedHolder");

        initializeAtRunTime(a, "java.util.concurrent.ThreadLocalRandom$ThreadLocalRandomProxy");

        /*
         * Re-initialize the registered shutdown hooks, because any hooks registered during native
         * image construction must not survive into the running image. Both classes have only static
         * members and do not allow instantiation.
         */
        initializeAtRunTime(a, "java.lang.ApplicationShutdownHooks", "java.io.DeleteOnExitHook");

        /* Trigger initialization of java.net.URLConnection.fileNameMap. */
        java.net.URLConnection.getFileNameMap();
    }

    @Override
    public void beforeAnalysis(BeforeAnalysisAccess access) {
        registerInfoCmpResources(access);

    }

    private static void registerInfoCmpResources(BeforeAnalysisAccess access) {
        /*
         * A JDK reduced via jlink might not have this class, so we must use a reflective class
         * lookup.
         */
        Class<?> infoCmpClazz = ReflectionUtil.lookupClass(true, "jdk.internal.org.jline.utils.InfoCmp");

        if (infoCmpClazz != null) {
            access.registerReachabilityHandler(_ -> {
                Module module = infoCmpClazz.getModule();
                Optional<ResolvedModule> resolvedModule = ModuleLayer.boot().configuration().findModule(module.getName());
                VMError.guarantee(resolvedModule.isPresent());

                try (ModuleReader reader = resolvedModule.get().reference().open()) {
                    reader.list().filter(entry -> entry.endsWith(".caps") || entry.endsWith("capabilities.txt"))
                                    .forEach(entry -> RuntimeResourceAccess.addResource(module, entry));
                } catch (IOException e) {
                    throw VMError.shouldNotReachHere(e);
                }

            }, infoCmpClazz);
        }
    }
}
